Improvement in wagon-springs



Y WAGON-SEEING.

Patented Dec. 21,

ATTORNEYS.

METERS, PHoTo-LITHcsRwnEn, wAsHm'm. uc.

i UNITED STATES PATENT EEICE.

ALEXANDER W. McKo'wN, `or HoNEsDALE, PENNsYLvANIA.

IMPROVEMENT IN WAGON-SPRINGS.

Specification forming part of Letters Patent N0. 171,401, dated December 21, 1875; application tiled September 4, 1875.

To all whom, it may concern:

`Be it known that I, ALEXANDER W. Mc-

,KOWN, of Honesdale, in the county of Wayne and State of Pennsylvania, have invented a new and useful Improvement in Wagon- Springs, of which the following is' a specilication: p

In the accompanying drawing, Figures l andI 2 represent end views-of my improved wagon-spring; and Fig. 3, a bottom view ofthe Wagon-body, showing attachment of springs thereto. 1 y

Similar letters of reference indicate corresponding parts.

`The object of this invention is tocombine, with main supporting-springs for vehicles, auxiliary or re-enforcing springs, which may be applied to assist or re-enforce torsional springs, for carrying any extra load that may be put upon them above their sustaining capacity,and to disconnect the auxiliary springs and throw them out of action when the load is smaller than the carrying capacity of the main springs, so that in each case a more effective and elastic action ofthe springs is obtained.

.The invention consists in the combination of torsion-springs of a vehicle with auxiliary or reenforcing torsion-springs, arranged unthe main springs B are applied in some approved'manner. Additional torsional springs C are attached, by suitable staples, to the Wagon-body and to standards, blocks, or other seats D of the axles. The auxiliary springs C serve to reenforce the main springs B, and may be detached from standards or seats D, anl the'lever ends swung up to the under side of the wagon-body, to be there secured by suitable fastening devices C.V

are seated in recesses a of the body A, and

have .to be moved forward to deeper grooves c', to allow the swinging up of the front or lever ends. The supporting main andauxiliary springs are arranged according to the weight of the load to be carried.

When the load does not exceed the `carrying capacity of the main spring the auxiliary springs are thrown out of action, as they would impart a too stiff and rigid action and short and jerky movements to the body;

but when the Weight of the load exceeds the capacity of the lnain springs theauxiliary springs are brought into use, and thereby the same proportionate resistance given to the load as in the former case, while the adjustment of spring-power producesin each case the easier and more elastic support of the body. The power of the springs is more fully utilized and their durability increased by the uniformity of strain to which they are exposed by my adjustable arrangement.

Gheckstraps E connect, furthermore, the wagen-body and perch, and arehitched and unhitched for the arrangement of the auxiliary springs. They are designed to steady and control the action ofthe springs, and are, under some conditions, of great usefulness.

Having thus described my invention, I claim, as new and desire to secure by Letters Patent- The detachable torsion-springs '0, arranged on the inside of outer springs B, as and for the purpose described.

ALEXANDER W. McxowN.

Witnesses:

P. P. SMITH, JAs. B. ELDRED. 

